Creates a mediator for pipeline details vue in order to mount several vue apps with the same data

app/assets/javascripts/pipelines/components/graph/graph_component.vue

 <script>
-  /* global Flash */
-  import Visibility from 'visibilityjs';
-  import Poll from '../../../lib/utils/poll';
-  import PipelineService from '../../services/pipeline_service';
-  import PipelineStore from '../../stores/pipeline_store';
   import stageColumnComponent from './stage_column_component.vue';
   import loadingIcon from '../../../vue_shared/components/loading_icon.vue';
   import '../../../flash';
 
   export default {
+    props: {
+      isLoading: {
+        type: Boolean,
+        required: true,
+      },
+      pipeline: {
+        type: Object,
+        required: true,
+      },
+    },
+
     components: {
       stageColumnComponent,
       loadingIcon,
     },
 
-    data() {
-      const DOMdata = document.getElementById('js-pipeline-graph-vue').dataset;
-      const store = new PipelineStore();
-
-      return {
-        isLoading: false,
-        endpoint: DOMdata.endpoint,
-        store,
-        state: store.state,
-      };
+    computed: {
+      graph() {
+        return this.pipeline.details && this.pipeline.details.stages;
       },
-
-    created() {
-      this.service = new PipelineService(this.endpoint);
-
-      const poll = new Poll({
-        resource: this.service,
-        method: 'getPipeline',
-        successCallback: this.successCallback,
-        errorCallback: this.errorCallback,
-      });
-
-      if (!Visibility.hidden()) {
-        this.isLoading = true;
-        poll.makeRequest();
-      }
-
-      Visibility.change(() => {
-        if (!Visibility.hidden()) {
-          poll.restart();
-        } else {
-          poll.stop();
-        }
-      });
     },
 
     methods: {
-      successCallback(response) {
-        const data = response.json();
-
-        this.isLoading = false;
-        this.store.storeGraph(data.details.stages);
-      },
-
-      errorCallback() {
-        this.isLoading = false;
-        return new Flash('An error occurred while fetching the pipeline.');
-      },
-
       capitalizeStageName(name) {
         return name.charAt(0).toUpperCase() + name.slice(1);
       },
@@ -101,7 +65,7 @@
         v-if="!isLoading"
         class="stage-column-list">
         <stage-column-component
-          v-for="(stage, index) in state.graph"
+          v-for="(stage, index) in graph"
           :title="capitalizeStageName(stage.name)"
           :jobs="stage.groups"
           :key="stage.name"

app/assets/javascripts/pipelines/graph_bundle.js

-import Vue from 'vue';
-import pipelineGraph from './components/graph/graph_component.vue';
-
-document.addEventListener('DOMContentLoaded', () => new Vue({
-  el: '#js-pipeline-graph-vue',
-  components: {
-    pipelineGraph,
-  },
-  render: createElement => createElement('pipeline-graph'),
-}));

app/assets/javascripts/pipelines/pipeline_details_bundle.js

+import Vue from 'vue';
+import PipelinesMediator from './pipeline_details_mediatior';
+import pipelineGraph from './components/graph/graph_component.vue';
+
+document.addEventListener('DOMContentLoaded', () => {
+  const dataset = document.querySelector('.js-pipeline-details-vue').dataset;
+
+  const mediator = new PipelinesMediator({ endpoint: dataset.endpoint });
+
+  mediator.fetchPipeline();
+
+  const pipelineGraphApp = new Vue({
+    el: '#js-pipeline-graph-vue',
+    data: {
+      mediator,
+    },
+    components: {
+      pipelineGraph,
+    },
+    render(createElement) {
+      return createElement('pipeline-graph', {
+        props: {
+          isLoading: this.mediator.state.isLoading,
+          pipeline: this.mediator.store.state.pipeline,
+        },
+      });
+    },
+  });
+
+  return pipelineGraphApp;
+});

app/assets/javascripts/pipelines/pipeline_details_mediatior.js

+/* global Flash */
+
+import Visibility from 'visibilityjs';
+import Poll from '../lib/utils/poll';
+import PipelineStore from './stores/pipeline_store';
+import PipelineService from './services/pipeline_service';
+
+export default class pipelinesMediator {
+  constructor(options) {
+    this.options = options || {};
+    this.store = new PipelineStore();
+    this.service = new PipelineService(options.endpoint);
+
+    this.state = {};
+    this.state.isLoading = false;
+  }
+
+  fetchPipeline() {
+    this.poll = new Poll({
+      resource: this.service,
+      method: 'getPipeline',
+      successCallback: this.successCallback.bind(this),
+      errorCallback: this.errorCallback.bind(this),
+    });
+
+    if (!Visibility.hidden()) {
+      this.state.isLoading = true;
+      this.poll.makeRequest();
+    }
+
+    Visibility.change(() => {
+      if (!Visibility.hidden()) {
+        this.poll.restart();
+      } else {
+        this.poll.stop();
+      }
+    });
+  }
+
+  successCallback(response) {
+    const data = response.json();
+
+    this.state.isLoading = false;
+    this.store.storePipeline(data);
+  }
+
+  errorCallback() {
+    this.state.isLoading = false;
+    return new Flash('An error occurred while fetching the pipeline.');
+  }
+}

app/assets/javascripts/pipelines/stores/pipeline_store.js

@@ -2,10 +2,10 @@ export default class PipelineStore {
   constructor() {
     this.state = {};
 
-    this.state.graph = [];
+    this.state.pipeline = {};
   }
 
-  storeGraph(graph = []) {
-    this.state.graph = graph;
+  storePipeline(pipeline = {}) {
+    this.state.pipeline = pipeline;
   }
 }

app/views/projects/pipelines/_with_tabs.html.haml

 - failed_builds = @pipeline.statuses.latest.failed
 
-- content_for :page_specific_javascripts do
-  = page_specific_javascript_bundle_tag('common_vue')
-  = page_specific_javascript_bundle_tag('pipelines_graph')
-
 .tabs-holder
   %ul.pipelines-tabs.nav-links.no-top.no-bottom
     %li.js-pipeline-tab-link
@@ -21,7 +17,7 @@
 
 .tab-content
   #js-tab-pipeline.tab-pane
-    #js-pipeline-graph-vue{ data: { endpoint: namespace_project_pipeline_path(@project.namespace, @project, @pipeline, format: :json) } }
+    #js-pipeline-graph-vue
 
   #js-tab-builds.tab-pane
     - if pipeline.yaml_errors.present?

app/views/projects/pipelines/show.html.haml

@@ -7,3 +7,9 @@
     = render "projects/pipelines/info"
 
   = render "projects/pipelines/with_tabs", pipeline: @pipeline
+
+.js-pipeline-details-vue{ data: { endpoint: namespace_project_pipeline_path(@project.namespace, @project, @pipeline, format: :json) } }
+
+- content_for :page_specific_javascripts do
+  = webpack_bundle_tag('common_vue')
+  = webpack_bundle_tag('pipelines_details')

changelogs/unreleased/31849-pipeline-show-view-realtime.yml

+---
+title: Creates a mediator for pipeline details vue in order to mount several vue apps
+  with the same data
+merge_request:
+author:

config/webpack.config.js

@@ -23,6 +23,7 @@ var config = {
   },
   context: path.join(ROOT_PATH, 'app/assets/javascripts'),
   entry: {
+    balsamiq_viewer:      './blob/balsamiq_viewer.js',
     blob:                 './blob_edit/blob_bundle.js',
     boards:               './boards/boards_bundle.js',
     common:               './commons/index.js',
@@ -47,8 +48,7 @@ var config = {
     notebook_viewer:      './blob/notebook_viewer.js',
     pdf_viewer:           './blob/pdf_viewer.js',
     pipelines:            './pipelines/index.js',
-    balsamiq_viewer:      './blob/balsamiq_viewer.js',
-    pipelines_graph:      './pipelines/graph_bundle.js',
+    pipelines_details:     './pipelines/pipeline_details_bundle.js',
     profile:              './profile/profile_bundle.js',
     protected_branches:   './protected_branches/protected_branches_bundle.js',
     protected_tags:       './protected_tags',
@@ -146,7 +146,7 @@ var config = {
         'notebook_viewer',
         'pdf_viewer',
         'pipelines',
-        'pipelines_graph',
+        'pipelines_details',
         'schedule_form',
         'schedules_index',
         'sidebar',

spec/javascripts/pipelines/graph/graph_component_spec.js

@@ -14,30 +14,25 @@ describe('graph component', () => {
 
   describe('while is loading', () => {
     it('should render a loading icon', () => {
-      const component = new GraphComponent().$mount('#js-pipeline-graph-vue');
+      const component = new GraphComponent({
+        propsData: {
+          isLoading: true,
+          pipeline: {},
+        },
+      }).$mount('#js-pipeline-graph-vue');
       expect(component.$el.querySelector('.loading-icon')).toBeDefined();
     });
   });
 
-  describe('with a successfull response', () => {
-    const interceptor = (request, next) => {
-      next(request.respondWith(JSON.stringify(graphJSON), {
-        status: 200,
-      }));
-    };
+  describe('with data', () => {
+    it('should render the graph', () => {
+      const component = new GraphComponent({
+        propsData: {
+          isLoading: false,
+          pipeline: graphJSON,
+        },
+      }).$mount('#js-pipeline-graph-vue');
 
-    beforeEach(() => {
-      Vue.http.interceptors.push(interceptor);
-    });
-
-    afterEach(() => {
-      Vue.http.interceptors = _.without(Vue.http.interceptors, interceptor);
-    });
-
-    it('should render the graph', (done) => {
-      const component = new GraphComponent().$mount('#js-pipeline-graph-vue');
-
-      setTimeout(() => {
       expect(component.$el.classList.contains('js-pipeline-graph')).toEqual(true);
 
       expect(
@@ -55,8 +50,6 @@ describe('graph component', () => {
       expect(component.$el.querySelector('loading-icon')).toBe(null);
 
       expect(component.$el.querySelector('.stage-column-list')).toBeDefined();
-        done();
-      }, 0);
     });
   });
 });